ADAC
Yes, both Threema Work and Office Chat offer a Free Trial.
Threema Work is designed for Large Enterprises, Medium Business and Small Business.
Office Chat is designed for Medium Business and Small Business.
Pricing for Threema Work Starts at $10.99Per License Per Year whereas for Office Chat Starts at $20.75/Month when Billed Yearly.
Some top alternatives to Threema Work includes Output Messenger, Trillian, Dialog, Office Chat, Speakap, imBee, Softros LAN Messenger, Takle, TelebuPing and Messenger Communication Platform.
Some top alternatives to Office Chat includes Google Chat, Output Messenger, Trillian, Dialog, imBee, Pumble, Takle, TelebuPing, Microsoft Kaizala and ICQ.